64) Welding in horizontal, vertical and overhead position is difficult because the molten metal is deposited against gravity. Which physical property of metal helps in retaining the molten metal on the joint in overhead position?
Answer is:
Surface tension
Related ISRO Technician-B Welder Question Paper - 2016 (Set -1) with Answer Key
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Carbon
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Tungsten with 1 to 2 % Magnesium
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